Home / 205,151.20-307,726.80-167,826.40

Finding the Fourth Proportional to 205,151.20, 307,726.80 and 167,826.40

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Solution

The fourth proportional to 205,151.20, 307,726.80 and 167,826.40 is: 251,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,151.20 : 307,726.80 = 167,826.40 : x
  2. Step 2: Convert to fraction form
    205,151.20/307,726.80 = 167,826.40/x
  3. Step 3: Cross multiply
    205,151.20x = 307,726.80 × 167,826.40
  4. Step 4: Simplify right side
    205,151.20x = 51,644,681,027.52
  5. Step 5: Solve for x
    x = 51,644,681,027.52/205,151.20
  6. Step 6: Final answer
    x = 251,739.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.